diff --git a/blazar/manager/service.py b/blazar/manager/service.py
index 31894516..10d63ce0 100644
--- a/blazar/manager/service.py
+++ b/blazar/manager/service.py
@@ -155,6 +155,10 @@ class ManagerService(service_utils.RPCServer):
 
         LOG.info("Trying to execute events: %s", events)
         for event in events:
+            if not status.LeaseStatus.is_stable(event['lease_id']):
+                LOG.info("Skip event %s because the status of the lease %s "
+                         "is still transitional", event, event['lease_id'])
+                continue
             db_api.event_update(event['id'],
                                 {'status': status.event.IN_PROGRESS})
             try:
diff --git a/blazar/status.py b/blazar/status.py
index e8d549ee..ef3920b2 100644
--- a/blazar/status.py
+++ b/blazar/status.py
@@ -168,6 +168,16 @@ class LeaseStatus(BaseStatus):
 
         return True
 
+    @classmethod
+    def is_stable(cls, lease_id):
+        """Check if the lease status is stable
+
+        :param lease_id: Lease ID
+        :return: True if the status is in (PENDING, ACTIVE, TERMINATED, ERROR)
+        """
+        lease = db_api.lease_get(lease_id)
+        return (lease['status'] in cls.STABLE)
+
     @classmethod
     def lease_status(cls, transition, result_in):
         """Decorator for managing a lease status.
diff --git a/blazar/tests/manager/test_service.py b/blazar/tests/manager/test_service.py
index 55c2a942..1d1dc23c 100644
--- a/blazar/tests/manager/test_service.py
+++ b/blazar/tests/manager/test_service.py
@@ -145,6 +145,7 @@ class ServiceTestCase(tests.TestCase):
                                         'resource_id': '111',
                                         'resource_type': 'virtual:instance',
                                         'status': 'FAKE PROGRESS'}],
+                      'status': status.LeaseStatus.PENDING,
                       'start_date': datetime.datetime(2013, 12, 20, 13, 00),
                       'end_date': datetime.datetime(2013, 12, 20, 15, 00),
                       'trust_id': 'exxee111qwwwwe'}
@@ -231,8 +232,12 @@ class ServiceTestCase(tests.TestCase):
     def test_event_success(self):
         events = self.patch(self.db_api, 'event_get_all_sorted_by_filters')
         event_update = self.patch(self.db_api, 'event_update')
-        events.return_value = [{'id': '111-222-333', 'time': self.good_date},
-                               {'id': '444-555-666', 'time': self.good_date}]
+        events.return_value = [{'id': '111-222-333',
+                                'lease_id': 'lease_id1',
+                                'time': self.good_date},
+                               {'id': '444-555-666',
+                                'lease_id': 'lease_id2',
+                                'time': self.good_date}]
         self.patch(eventlet, 'spawn_n')
 
         self.manager._event()
@@ -245,7 +250,9 @@ class ServiceTestCase(tests.TestCase):
         events = self.patch(self.db_api, 'event_get_all_sorted_by_filters')
         event_update = self.patch(self.db_api, 'event_update')
         self.patch(eventlet, 'spawn_n').side_effect = Exception
-        events.return_value = [{'id': '111-222-333', 'time': self.good_date}]
+        events.return_value = [{'id': '111-222-333',
+                                'lease_id': self.lease_id,
+                                'time': self.good_date}]
 
         self.manager._event()
 
@@ -253,6 +260,23 @@ class ServiceTestCase(tests.TestCase):
             mock.call('111-222-333', {'status': status.event.IN_PROGRESS}),
             mock.call('111-222-333', {'status': status.event.ERROR})])
 
+    def test_event_pass(self):
+        events = self.patch(self.db_api, 'event_get_all_sorted_by_filters')
+        events.return_value = [{'id': '111-222-333',
+                                'lease_id': self.lease_id,
+                                'time': self.good_date}]
+
+        self.lease_get = self.patch(self.db_api, 'lease_get')
+        lease = self.lease.copy()
+        lease.update({'status': status.LeaseStatus.CREATING})
+        self.lease_get.return_value = lease
+
+        event_update = self.patch(self.db_api, 'event_update')
+
+        self.manager._event()
+
+        event_update.assert_not_called()
+
     def test_exec_event_success(self):
         event = {'id': '111-222-333',
                  'event_type': 'start_lease',
diff --git a/blazar/tests/test_status.py b/blazar/tests/test_status.py
index 22be8a30..e2cdd955 100644
--- a/blazar/tests/test_status.py
+++ b/blazar/tests/test_status.py
@@ -154,6 +154,21 @@ class LeaseStatusTestCase(tests.TestCase):
 
         self.assertFalse(result)
 
+    def test_is_stable(self):
+        lease_id = self.lease_id
+        lease_pending = {'id': lease_id,
+                         'status': status.LeaseStatus.PENDING}
+        lease_creating = {'id': lease_id,
+                          'status': status.LeaseStatus.CREATING}
+
+        self.patch(self.db_api, 'lease_get').return_value = lease_pending
+        result = self.status.LeaseStatus.is_stable(lease_id)
+        self.assertTrue(result)
+
+        self.patch(self.db_api, 'lease_get').return_value = lease_creating
+        result = self.status.LeaseStatus.is_stable(lease_id)
+        self.assertFalse(result)
+
     def test_lease_status(self):
         lease = {
             'status': status.LeaseStatus.PENDING